An in-depth investigation of 11 pulsars discovered by FAST

Corban, G. Jacobs; Kaczmarek, J. F.; Tao, Z. Z.; Xu, R. X.; Zhang, S. B.; Zhou, S. Q.; Qiu, K. P.

Abstract

We present timing solutions and analyses of 11 pulsars discovered by the Five-hundred-meter Aperture Spherical radio Telescope (FAST). These pulsars were discovered using an ultrawide bandwidth receiver in drift-scan observations made during the commissioning phase of FAST, and were then confirmed and timed using the 64-m Parkes Radio Telescope. Each pulsar has been observed over a span of at least one year. Highlighted discoveries include PSR J0344-0901, which displays mode-changing behaviour and may belong to the class of so-called swooshing pulsars (alongside PSRs B0919+06 and B 1859+07); PSR J0803-0942, whose emission is almost completely linearly polarized; and PSRs J1900-0134 and J1945 + 1211, whose well-defined polarization angle curves place stringent constraints on their emission geometry. We further discuss the detectability of these pulsars by earlier surveys, and highlight lessons learned from our work in carrying out confirmation and monitoring observations of pulsars discovered by a highly sensitive telescope, many of which may be applicable to next-generation pulsar surveys. This paper marks one of the first major releases of FAST-discovered pulsars, and paves the way for future discoveries anticipated from the Commensal Radio Astronomy FAST Survey.

Más información

Título según WOS: ID WOS:000543025500068 Not found in local WOS DB
Título de la Revista: Monthly Notices of the Royal Astronomical Society
Volumen: 495
Número: 3
Editorial: Oxford University Press
Fecha de publicación: 2020
Página de inicio: 3515
Página final: 3530
DOI:

10.1093/mnras/staa1328

Notas: ISI